I am a new user to Starry Night and have just got my first (second hand) telescope. I have Starry Night Pro 8 and a Celestron Nexstar 6 and I would like to control the telescope from my computer (a Mac running Mac os 10.14.4 Mojave).
With the 'scope I got a serial 9 pin D connector. Do I simply buy a serial to USB cable, or is it more complicated than this (I suspect it is).
Thanks in advance for any advice.
Jonathan